99% From Birds Sounds of Southern South America by Lopez-Lanus (2008). Originally uploaded as Steinbach's Canastero, but this appears to be an error (based on analysis by N. Krabbe). I will get more recordings from this site to compare to, I may in fact have others. Both species, Pseudasthenes steinbachi and Asthenes dorbigny are present at this site in Potrerillos, Mendoza, Arg.